proactive security ?

Discuss usability issues, general maintenance, and general support issues for a grsecurity-enabled system.

proactive security ?

Postby pumpkins » Fri Apr 07, 2006 7:31 am

Hi Guys!

I'l have a question: anyone try to use
GrSec/PaX/SSP/ExecShield/PIE protection?
is this possible? can be any problems with whis (kernel build,
package compiling and using etc)?
pumpkins
 
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Postby JLO » Fri Apr 07, 2006 7:27 pm

Alright, I'm kinda glad you brought that up. I'm wanting to remove pax from the grsecurity patch (I would like to keep the other features), and try this patch out on a 2.4.32 kernel:
http://aslp.kavefish.net/
JLO
 
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Joined: Wed Aug 18, 2004 10:23 am

Re: proactive security ?

Postby tosh » Tue Apr 11, 2006 8:00 am

pumpkins wrote:I'l have a question: anyone try to use
GrSec/PaX/SSP/ExecShield/PIE protection?
is this possible? can be any problems with whis (kernel build,
package compiling and using etc)?


I am using GrSec/PaX/SSP/PIE.
ExecShield is similar to PaX so mixing both may not work or even dosn't make sense.

To get randomization of executables in kernel 2.6 you should use PIE if i am correct PaX don't do that in 2.6 kernels any more (kernel does it by itself).

SSP helps preventing return to glibc atacks which GrSec/PaX cannot stop so it is a good fulfit.
tosh
 
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Joined: Mon Apr 10, 2006 9:13 pm


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